Ashton Kutcher is putting the moves on girlfriend Mila Kunis, or someone who appears to be Kunis, since the photo is so darn dark.

But still: Kelso and Jackie, sitting in a tree, K-I-S-S-I-N-G.

The "That '70s Show" costars, who have been dating for months, are seemingly caught in a liplock in a photo Kutcher posted on social media. The couple is barely visible as they smooch under a neon sign that says "Sun," but the arty shot is so backlit that their profiles almost blend into the background, save for Kunis' — or what appears to be Kunis' — messy bun and a little peek of Kutcher's eye.

Kutcher, 35, has been fairly private about their relationship on social media, and Kunis has no verified social-media accounts. However, the unverified @KunisMilena on Instagram has been pretty active with lovey-dovey photos of the pair, though it is unclear if she runs it or not.